
For more information please see Logtail: Koa logging on GitHub .
For more information please see Logtail: Koa logging on GitHub .
Install the following @logtail/koa
NPM package and then attach the Logtail instance as a middleware to your Koa instance:
npm install @logtail/koa
const Koa = require("koa");
const { Logtail } = require("@logtail/koa");
// Create a new Koa instance
const koa = new Koa();
// Create a new Logtail client
const logtail = new Logtail("<source-token>");
// Attach Koa to enable HTTP request logging
logtail.attach(koa);
Don't forget to replace with your actual source token which you can find by going to your account -> sources -> edit.
Successful requests
A successful request is one that returns a non-4xx
or 5xx
status code and doesn't throw any uncaught errors while handling the requests. These are logged to Logtail using [LogLevel.Info](https://github.com/logtail/logtail-js/tree/master/packages/types#loglevel)
4xx status codes
These are not considered errors but warnings and log with the same message using [LogLevel.Warn](https://github.com/logtail/logtail-js/tree/master/packages/types#loglevel)
5xx status codes
Responses that contain a 5xx
status code are considered errors and are logged with [LogLevel.Error](https://github.com/logtail/logtail-js/tree/master/packages/types#loglevel)
Since this Koa plugin extends the regular [@logtail/node](https://github.com/logtail/logtail-js/tree/master/packages/node)
logger, you can use the .log|info|warn|error
functions as normal to handle logging anywhere in your app.